hypsography vs geology

hypsography and geology both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypsography	Yes	No	No	No
geology	Yes	No	No	No

As nouns, geology is a hypernym of hypsography; that is, geology is a word with a broader meaning than hypsography:

hypsography: the scientific study of the earth's configuration above sea level (emphasizing the measurement of land altitudes relative to sea level)
geology: a science that deals with the history of the earth as recorded in rocks

hypsography (noun)	geology (noun)
measurement of the elevation of land above sea level	a science that deals with the history of the earth as recorded in rocks
the scientific study of the earth's configuration above sea level (emphasizing the measurement of land altitudes relative to sea level)